"Noone who knows something about fighting doesn't give attacks with such commitment that Aikido (I'm talking about "normal" person level... let's leave all the old mystery men above 6th dan out) could deal with it."
->
No one does not give attacks that Aikido could deal with.
->
Everyone will give attacks that Aikido could deal with.

Do you mean:

No one who fights well will give attacks that Aikido could deal with?

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Where did you hear that Royce does purple belt level BJJ. I've never rolled with him, but I've never heard that either.

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Royler is definately a blackbelt, and I've felt him. Genki Sudo recently beat him in K1, but... Royler is like 155 lbs.